The girl told investigators she was dragged into the bushes and attacked by an unknown man after getting off a bus in Windale, near New South Wales' Lake Macquarie.

On Wednesday, police released information about the alleged incident, and said the girl had described her attacker 30 to 40-years-old, of solid build with prominent nose and lips, and was wearing a dark hoody.

The report was confirmed as false following investigations.

At the time police noted the remarkable speed of the attack -- just 20 minutes elapsed between her getting off the bus and her first call to Triple Zero.

NSW police said the girl has been spoken to and has been offered support services.